PRELIMINARY
CM20LT
HDMI Source/Sink Port Protection and Interface Device
Features
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•
•
•
•
•
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Long HDMI cable support with integrated I
2
C
accelerator
Low Capacitance DDC for HDMI Compliance
Translates I
2
C level to CMOS level on DDC line
Overcurrent output protection for Source
5V Diode Bridge for EEPROM for Sink
Level shifting isolation circuitry, including
±8kV
ESD protection on all external I/O lines
Backdrive protection and Isolation <5µA on all pins
Product Description
The CM20LT HDMI Port Protection and Interface
Device is designed for next generation HDMI Source
and Sink interface protection.
An integrated package provides complete low capaci-
tance ESD, level shifting/isolation, overcurrent output
protection, EEPROM and backdrive protection to
ensure HDMI Compliance in a single 8-Pin MSOP or
SOIC package.
The CM20LT part is specifically designed to provide
the designer with the most reliable path to HDMI 1.3
CTS compliance.
Applications
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•
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PC and Consumer Electronics
Set Top Box, DVDRW Players
Consumer Electronics
Displays and Digital Television
Electrical Schematic
55mA
OVERCURRENT
SWITCH
VOUT
VIN_1
VIN_2
VIN_2
VIN_1
VIN_2
VIN_1
DDC_CLK_IN
DYNAMIC
PULLUP
DDC_CLK_OUT
DDC_DAT_IN
DYNAMIC
PULLUP
DDC_DAT_OUT
CMOS/I2C
LEVEL SHIFT
CMOS/I2C
LEVEL SHIFT
© 2006 California Micro Devices Corp. All rights reserved.
4/18/2006
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
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Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
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CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
